Set up a KryoZon S9 4K60 recording station around a case-free Galaxy S25 Ultra for a 30-minute MC Pro 24 FPS take. In Techduardo’s recording test, on-screen battery, processor, and graphics readings ended at 42/57/53°C without a cooler and 10/41/37°C with the S9. Keep the phone, water-cooling head, tubing, and camera settings secure throughout the take.

Key Takeaways
- Techduardo’s 30-minute 4K60 runs provide device-specific temperature endpoints for a case-free Galaxy S25 Ultra.
- A fixed recording station needs secure head and tube placement before the camera is left running.
- A saved trial file provides direct evidence of capture quality across focus, exposure, color, and duration.
- A longer planned session requires its own full-length rehearsal on the intended phone and settings.
Techduardo’s 30-minute 4K60 test shows the station’s measured endpoints
Techduardo made two 30-minute 4K60 recordings in MC Pro 24 FPS on a Samsung Galaxy S25 Ultra without a case. The room, framing, lighting, screen brightness, app settings, and duration matched between takes. After the uncooled take, the displayed battery, processor, and graphics readings were 42°C, 57°C, and 53°C. After the KryoZon S9 take, they were 10°C, 41°C, and 37°C. The shown external surface ranges were 35.9–42.4°C without a cooler and 23.8–32.9°C with it. No temperature error appeared in these specific runs. These are Techduardo’s reported measurements, not temperatures promised for another phone.
| Reading after the 30-minute take | Without a cooler | With the S9 |
|---|---|---|
| On-screen battery | 42°C | 10°C |
| On-screen processor | 57°C | 41°C |
| On-screen graphics | 53°C | 37°C |
| External surface range | 35.9–42.4°C | 23.8–32.9°C |
Methodology: Techduardo made separate 30-minute 4K60 recordings in MC Pro 24 FPS on a case-free Galaxy S25 Ultra, matching the room, framing, lighting, brightness, settings, and duration. Values are the reported on-screen post-run readings and external surface ranges. No ambient-temperature value or starting sensor readings were supplied. Source: Techduardo’s recording test.
Techduardo observed these readings in separate 30-minute Galaxy S25 Ultra runs. As a cautious planning suggestion—not a conclusion established by the test—you can use them as a reference for that phone and setup, not as an estimate for every device (Source). The surface ranges measure the exterior, not internal battery-temperature thresholds. Before an hour-long or longer session, make a trial recording with your phone, room, and planned settings.
Techduardo’s test states the phone, app, resolution, frame rate, case condition, and duration. Record the same details in your own test. A phone that feels cooler has not necessarily saved a complete 4K60 file or repeated the same conditions on the next take.
MC Pro 24 FPS Provides Controls Worth Checking Before Capture
Set up the camera app before turning on the cooler. The official MC Pro 24 FPS specification lists 4K recording and 60 fps among its supported options, subject to the resolutions and frame rates exposed by the phone’s Camera2 API. It also lists MP4 and MOV containers, AVC and HEVC codecs, a constant-FPS mode, selectable storage, and manual or automatic controls for focus, exposure, and white balance. Those are app capabilities, not proof that every phone offers every combination.
Select the intended resolution and frame rate, then review the live preview and a saved short trial. Confirm that the planned camera offers 4K at 60 fps. Also confirm the codec and storage destination, especially for an external drive or SD card. The app’s documentation calls for high-speed SD storage or an external drive when stable recording to those destinations is required. It gives no universal storage-speed figure for this setup, so test the selected destination.
Set focus and exposure with the subject at its full-take distance. Use the focus mode suited to the scene and review a short sample for hunting. Watch bright and dark areas as lighting changes. When manual settings or locks suit the shot, verify them in the saved clip. MC Pro 24 FPS documents focus modes, manual and automatic exposure, white-balance options, and an automatic white-balance lock; the right choice depends on the scene and phone.
Cooling does not confirm image quality. An outdoor 4K recorder in r/RedMagic reported that autofocus and automatic color or brightness adjustment still needed work after an extended take. That account covers a different phone, not the S9. Review the image along with the temperature reading and recording timer.
An S9-cooled MC Pro 24 FPS station needs secure mounting and clear tubing
Arrange the station around the phone’s camera position. Secure the phone in a stable holder, set the framing, and leave space for the cooling head. Confirm the fit with the intended case and attachment, with the cooling head seated without blocking the camera or controls. The KryoZon S9 Water Cooling Phone Cooler - Fanless Liquid Cooling supports magnetic attachment with a compatible phone or case and includes a clip when magnetic attachment is unavailable. Its official product FAQ specifies phones up to 92 mm wide. Confirm your phone fits and keep the camera lenses, controls, and required ports accessible.
The S9 has a standard 1/4-inch brass thread designed for most streaming stands and tripods, according to its product FAQ (Source). As a setup precaution, use a separate secure phone holder if needed to keep the phone at the chosen angle. Assemble the phone and cooling head, then lightly test whether either shifts while you use the controls. Review the camera preview for any part of the installation in frame.
Set up the water-circulation system before the take. The printed S11/S9 operating instructions say to place the pump completely under room-temperature water in a large-capacity container and prohibit running it dry. They then direct the user to fix the cooling head to the phone and press the inline controller button to start cooling; a two-second long press switches it off. These are operating steps, not a tested reservoir-volume or recording-duration claim.
Position the S9’s 1.2 m tube so the phone can remain in its final position without the line pulling on the cooling head. Put the water container and power connection where nearby movement will not disturb them. The S9’s official FAQ calls for a Type-C source rated at 12 V / 2.5 A or higher for rated 30 W operation; a basic 5 V USB port is insufficient. The printed operating sheet separately recommends a compatible 12 V / 3 A source. Confirm the power supply before framing the camera, since changing cables mid-take means rebuilding part of the station.
A short check take exposes setup errors before the full 4K60 run

Set up the phone, cooling head, tubing, water container, and power, then record a short sample using the exact MC Pro 24 FPS settings planned for the full take. Match the camera, 4K60 selection if supported, codec, storage location, framing, and lighting. The sample can reveal a loose holder, tube tension, a blocked view, the wrong frame rate, or an unexpected storage destination before the full session.
Open the saved sample file rather than trusting the live preview. Confirm that it opens, includes the expected start and finish, and has usable sound if sound matters for the production. Watch a moving section for focus behavior and a changing-light section for exposure or color shifts. The MC Pro 24 FPS feature list documents controls for focus, exposure, and white balance; the saved file shows how those settings worked on your phone.
Run a trial that matches the planned take length. Techduardo’s 30-minute Galaxy S25 Ultra example provides one reference point. Camera module, codec, storage path, and power setup differ between phones. The test did not report ambient temperature, so log the phone, settings, duration, and any warning or interruption during your own trials.
For an unattended shot, evaluate the result as closely as the setup. Verify the expected file count and duration, inspect footage near the middle and end, and listen to a representative section. The S9’s real-time temperature display and overheat alert with automatic shutoff are documented in its official FAQ, but the saved take is the deliverable.
S9 4K60 recording still depends on image quality and session length
A completed recording still needs an image review. Focus can drift, automatic exposure can brighten the background, and automatic white balance can change the color of a face or product. The r/RedMagic outdoor recorder identified autofocus and automatic color or brightness adjustment as issues to improve after an extended 4K take. Review footage at several points and adjust camera controls if those changes distract from the subject.
One successful take does not establish an unlimited recording duration. Techduardo’s documented S9 comparison covers 30-minute runs on one case-free Galaxy S25 Ultra. It reports the endpoints from those runs, including the external surface ranges. Creators who need a substantially longer continuous file should run that duration on their own equipment and keep an alternative ready if an interruption would be costly.
The r/Smartphones post requests uninterrupted indoor tripod recording of at least 2 hours at 1080p 30fps. That is the duration to prove in a planned recording trial.
Confirm the cooling head’s physical fit before recording. An r/EmulationOnAndroid post described cutting a case to expose a cooling plate. Instead, use a permitted magnetic or clip attachment, make sure a case does not block placement, and confirm that the head remains seated during a short trial. The case-free Techduardo setup is a specific configuration for comparison.
Indoor sets and hot outdoor shoots need separate trial plans
The r/Beatmatch discussion describes a OnePlus 8 Pro owner who needs uninterrupted 1–3 hour videos and is considering a dedicated camera or another phone. That is a reasonable alternative when the required duration exceeds what your phone-and-cooler station has demonstrated. The S9 test supplied here covers 30 minutes; neither it nor the DJ’s request establishes how long the S9 can operate.
A Reddit r/Beatmatch requester sought a dedicated camera or another phone for uninterrupted videos lasting 1-3 hours. This was a recording requirement. Source: Reddit r/Beatmatch
For indoor use, place the stand where performers will not bump it and keep the tube clear of the working area. Rehearse at the intended recording length, then review the last portion of the file and the camera image under the venue lights. The S9 has a fanless cooling head, while its water-circulation pump is rated below 30 dB by the manufacturer, according to the official FAQ. Listen to a sample from the actual microphone position before relying on the setup for spoken audio.
Outdoor shoots bring changing light, a potentially warmer location, and equipment that can be harder to keep still. The r/RedMagic post reports extended 4K recording in 94°F/34°C desert heat on a different phone. Record the environment alongside the camera settings during outdoor trials.
Use Techduardo’s 30-minute run as a model for the trial. Confirm the phone’s app options, fit the cooling head, submerge the pump as instructed, secure the tube, record for the required duration, and inspect the saved file. The measurements show what happened in one described 30-minute station. Check the KryoZon S9 product page for current fit and power details before assembling the station.
Product Specifications
| Model | Cooling | Power | Noise | Weight | Attachment | Port | Voltage | Mount | Modes | Material | Package | Fits | Display | Protection | Tube Length |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KryoZon S9 Water Cooling Phone Cooler - Fanless Liquid Cooling | Water Cooling (PC-grade loop) | 30W | Fanless cooling head; pump <30dB (manufacturer rating) | 75g (cooling head only) | Magnetic + Clip | Type-C | 12V / 2.5A | 1/4" brass thread | 3 modes: High / Low / AI | Aluminum Alloy + ABS | Cooler x1, Cable x1, Clip x1, Manual | Phones up to 92mm wide | Real-time temperature | Overheat alert + auto shutoff | 1.2m |
Frequently Asked Questions
Can MC Pro 24 FPS record 4K at 60 fps on every phone?
Support varies by phone. The official app specification lists 4K and 60 fps support, but available resolutions depend on the device’s Camera2 API. Before a full take, select the intended camera and save a short 4K60 file on your phone.
What power and water setup does the S9 require?
The S9 product FAQ specifies a Type-C source rated at 12 V / 2.5 A or higher for rated 30 W operation. The printed operating instructions recommend a compatible 12 V / 3 A source and require the pump to be completely submerged in room-temperature water during operation. Do not run the pump dry.
Will a fanless cooling head make the recording silent?
The cooling head has no fan, but the system uses a water-circulation pump. The manufacturer rates the pump below 30 dB in the official FAQ. With the microphone in place, record a sample and listen for pump noise before the full take.
References & Citations
- MC Pro 24 FPS documents 4K, 60 fps, recording formats, storage selection, and focus, exposure, and white-balance controls, subject to device support. (MC Pro 24 FPS official full specification)
- The S9 FAQ documents its power requirement, pump noise rating, modes, mounting thread, phone fit, attachment methods, tube length, display, and protection features. (KryoZon S9 official product FAQ)
- The printed operating instructions direct users to submerge the pump, attach the cooling head, and use the inline controller. (Printed S11/S9 operating instructions)
- A user sought continuous tripod recording of 2 hours or more at 1080p 30fps. (Reddit r/Smartphones tripod recording request)
- A RedMagic owner described extended outdoor 4K recording in 94°F/34°C heat and later identified autofocus and automatic color or brightness changes as concerns. (Reddit r/RedMagic outdoor recording report)
- A user described cutting a phone case to expose a cooling plate; this was not an S9 installation test. (Reddit r/EmulationOnAndroid case modification)
- A OnePlus 8 Pro owner described a need for uninterrupted 1–3 hour DJ-session recordings and considered another recording device. (Reddit r/Beatmatch DJ recording discussion)
Community & User Sources
- Techduardo's 30-minute 4K60 test showed internal battery/processor/graphics readings of 42/57/53 C without a cooler a... (Techduardo (Influencer))